Auto dealers from 117 new-car franchises are suing TrueCar Inc. for more than $250 million, claiming they are victims of false advertising and unfair competition. They say TrueCar is misleading consumers by boasting of a haggle-free experience at dealerships. The dealers who filed the lawsuit, and are not current users of TrueCar, say they “Have lost sales and have suffered injury to their goodwill and business reputation as a result of TrueCar’s false advertising claims.”